Bolt-lock



G. BARON.

BOLT LOCK.

APPLICATION FILED 050.4. 1920.

1 ,447, K w y Patented Sept. 20, 1921.

w92 'aw' "fm1/lf3 mmnmumm'i JliiillllY umuummmmtm .MUM

III/'III' lin" I I u 4 l jg Y f 4 l 7 W 24 2f Z9 @ya f2,

/ ff 26 Ifina/afgifw/"U/ M/ya/v/z Imp ,. UNITED ,STATE,slilT,ENT OFFICE.

GEORGE inwoner MQNTREA'L, QUEBEC, CANADA.

',:BoLfr-Locrx.

To alljwwm tyma'i/ Gomera', v. Y .I A `Beit .known that l GEoRGnBARoN, ,a subject ofthe Kin Vro ffreat Britain, residing at Montreal, rovince ofQuebec, Canada, have inventedV certain new anduseful rovements in VBolt-Locks; and- *do` hereby clear, and-exactdescription ofthe invention, such-as will enable :others skilled inl the art to which it appertains to make and 4use the Same. f i

, The vpresent invention relates., to new, anduseful improvements in bolt locks. p,

The primary object of the inventionis theV provision of a bolt including two telescoping threaded sections and means for locking said sections against separation.

Another obj ect of the invention is the provision of a bolt lock including a bolt having a split end therefor, and a lock for said bolt comprising a sleeve threaded thereon, and means for extending the boltinto engage- Inentv with the sides of the sleeve for preyelting the removal of the sleeve from the A further object of the invention is the provision of a bolt which is threaded and provided with a split end, together with means for forcing said split end into engagement with an enlargement provided in the sleeve which is designed to be threaded upon said bolt for preventing the separation of the several parts. Y

A still further object of 'theinvention is the provision of a bolt and a locking means therefor, which will be comparatively simple and inexpensive to manufacture, reliable` and efficient in use, andreadily operated.

With the above and other objects'in view, the present invention resides in' the novel features of construction, formations, combinations and arrangements of parts toA be hereinafter more fully described,V claimed, and illustrated in the accompanyingdrawings forming a part of the present application, and in which Figure 1 1s a transverse sectional view taken through a railway rail showing the invention applied thereto;

Fig. 2 is an enlarged longitudinal sectional view taken through the bolt removed;

Fig. 3 is is an end view; Fig. 4 is a view similar to Fig. 2 but showing a modified form of bolt;

Fig. 5 is a longitudinal view showing sec- Specification of Letters'Patent. y

declarethat the following isa-full,

rammed sepa-2o, 1 921.

Application mea December 4, 1520.1sentano/428,321.

tions "of thefgboltconstructed in accordance with F ig.'4 partly separated;

Fig. 6 is a view showing the samev form with the 'sections locked together Fig.` 7 isa view looking at the end ofthe outer Asection Aof said bolt;

,Fig. 8 isaview correspo'ndingto Fig. 2'

before the endof the bolt is spread; and,

:.Fig. 9 is a corresponding view showing pli-( manner of spreadingthe end of said o t. Y Y

,Referring now to the accompanying drawings by corresponding characters of refervence throughout the severallviews, the numeral 10 designates in general aportioniof ajrailway railshownincross section, and having the usual connecting plates 11- in engagement with the opposite sides thereof, the said rail and plates being provided with the customary alining openings 12.

My improved bolt isshown at 13 and comprises a pair of sections 14 and 15,v the former of which comprises the usual threaded shank 16 provided at one end with a head 17 andhaving its opposite Vend split as shown at 18. The bolt at the inner end'of Y the split portion 18 is reduced as shown Vat 19 providing shoulders 20 for a purpose to be later explained.

The section 15 comprises an internal threaded sleeve 21 provided for engagement with the threaded shank 16 ofthe bolt.v

A head 22 Vis provided upon one end of the sleeve 21, while the interior of said sleeve adjacent the head 22 is enlarged as at 23 forming Vshoulders 24 for interlocking engagement with the shoulders 20 formed on the shank v16 when the end of said'shank has been yspread as vshown clearly in Fig. 6.

Any desired form of means may be employed for spreading the end of the shank 16, such as, for instance, the tapered pin 25 which is carried by the-head 22 and extends inwardly concentric of the sleeve 21, `as` 24 which obviously prevents the sections 14V and 15 from becoming separated.

Another form of spreading the split end 18 vof the sald shank is to provide an opening 26 centrally of the head 22 and vextend entirely therethrough in registration with the split portion 18 of the bolt. A suitable cold chisel such as shown at 27, or other desired instrument, may be inserted throu h the opening 26 into engagement with t e split portion 18 ofthe bolt, and by striking this instrument a sharp blow with a hammer or the like, shown at 28, the end of the bolt will be expanded forcing the shoulders 20 into engagement with the shoulders 24 and thus preventing the separation of the several sections.

From the foregoing description taken in connection with' the accompanying drawings, it will be manifest'that a bolt and a locklng meansv therefor isv provided which will fulfil all of the necessary requirements y of such a device, and while in the drawings for the purposes of illustration the same is shown in .connection with a railway rail, it is to be understood'that I aml not to be limited vto such use of the bolt but may employ the same for any other purpose to which the various parts thereof will adapt themselves, and it should be further understood in this The combination with a bolt including ay head and a threaded shank, saids'hankbeingl split at the end thereof, said bolt being 'rie` duced to weaken the same at the inner end of said split portion, and to form o positely disposed shoulders, ai sleeve threa edfupon said bolt, a head provided upon said sleeve, said sleeve'being enlarged adjacent the head forming shoulders, and meansfor spreading theVV end of the bolt at the weakened portion when the latter is threaded withinjthe sleeve for forcing the shoulders of the bolt behind the shoulders of the sleeve, as 'and for the purposes se't forth. i

' In witness whereof I have hereunto set my hand.

:GEORGE BARQN. l 

